// Copyright (C) 2016 the V8 project authors. All rights reserved.
// Copyright (C) 2017 Mozilla Corporation. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-dataview-buffer-byteoffset-bytelength
description: >
  Return new instance from defined offset
info: |
  24.2.2.1 DataView (buffer, byteOffset, byteLength )

  ...
  17. Return O.
features: [SharedArrayBuffer]
---*/

function Test() {
    var sample;
    var buffer = new SharedArrayBuffer(4);

    sample = new DataView(buffer, 0);
    assert.sameValue(sample.byteLength, 4, "sample.byteLength");
    assert.sameValue(sample.byteOffset, 0, "sample.byteOffset");
    assert.sameValue(sample.buffer, buffer);
    assert.sameValue(sample.constructor, DataView);
    assert.sameValue(Object.getPrototypeOf(sample), DataView.prototype);

    sample = new DataView(buffer, 1);
    assert.sameValue(sample.byteLength, 3, "sample.byteLength");
    assert.sameValue(sample.byteOffset, 1, "sample.byteOffset");
    assert.sameValue(sample.buffer, buffer);
    assert.sameValue(sample.constructor, DataView);
    assert.sameValue(Object.getPrototypeOf(sample), DataView.prototype);

    sample = new DataView(buffer, 2);
    assert.sameValue(sample.byteLength, 2, "sample.byteLength");
    assert.sameValue(sample.byteOffset, 2, "sample.byteOffset");
    assert.sameValue(sample.buffer, buffer);
    assert.sameValue(sample.constructor, DataView);
    assert.sameValue(Object.getPrototypeOf(sample), DataView.prototype);

    sample = new DataView(buffer, 3);
    assert.sameValue(sample.byteLength, 1, "sample.byteLength");
    assert.sameValue(sample.byteOffset, 3, "sample.byteOffset");
    assert.sameValue(sample.buffer, buffer);
    assert.sameValue(sample.constructor, DataView);
    assert.sameValue(Object.getPrototypeOf(sample), DataView.prototype);

    sample = new DataView(buffer, 4);
    assert.sameValue(sample.byteLength, 0, "sample.byteLength");
    assert.sameValue(sample.byteOffset, 4, "sample.byteOffset");
    assert.sameValue(sample.buffer, buffer);
    assert.sameValue(sample.constructor, DataView);
    assert.sameValue(Object.getPrototypeOf(sample), DataView.prototype);
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
